If you are trying to delete a file that Windows won't let you touch, you don't necessarily need an "Unlocker.rar":
This is the easiest way to release any stuck file handles. Unlocker.rar
It identifies which process is locking a file and gives you the option to kill the process or "unlock" the handle. If you are trying to delete a file
To help you more specifically, could you tell me or what you are trying to achieve (e.g., deleting a stubborn file or opening a password-protected one)? Unlocker.rar
Boot into Safe Mode to delete stubborn files without third-party tools. 3. If the RAR has a Password